Backflush Filter Stainless Steel
Autom. Backflushfilter/Rückspülfilter FW
GEFA filters are one of the most technically innovative self-cleaning filters available, combining proven high performance, reliability and economy in a compact robust design. GEFA Series FW can be mounted in any position or orientation, with minimal space requirements.
The key feature to GEFA performance and reliability is the use of the escaping backflush water to rotate the internal cleaning mechanism inside the filter vessel. No external motor, mechanism or power is required, reducing the number of moving/wearing parts to a minimum. Automatic Operation of the self cleaning backflush cycle is achieved when a pre-set pressure drop (40 - 50 kPa) across the filter is reached. 100% cleaning as every spot on the fine screen surface is cleaned with a high velocity, aggressive backflush flow.
No External Power is required (when using the hydraulic controlled filter). All functions are powered by the line pressure only. All controls required come complete with the filter.
Available filtration degrees:
30 µm, 50 µm, 80 µm, 100 µm, 120 µm, 150 µm, 200 µm, 400 µm, 800 micron
Nominal sizes:
DN 50 (2") , DN 80 (3"), DN 100 (4"), DN 150 (6"), DN 200 (8"), DN 250 (10"), DN 300 (12"), DN 350 (14")
Main Features
- Filter Housing: Stainless Steel AISI 304 (AISI 316 on request)
- Mesh Screen: Stainless Steel AISI 316
- Working pressure: min. 2 bar / max. 10 bar
- Pressure Level: PN 10 (PN 16 on request)
- Max. Working Temperature: 55 °C (higher on request)
- Nominal Size: DN 50 - DN 350 Female/Flange
Options
- Hydraulic, electro-pneumatic or electric-control
- Non-ferrous Metal-free design
- Silicone-free version
Which filter is right for your application?
Approximate calculation of the filter type with an operating pressure of min. 2 bar
|
Cooling water quality (dirt load of approx. 100mg/l) |
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|
25 m³/h |
50 m³/h |
100 m³/h |
150 m³/h |
200 m³/h |
|
|
30µm |
2x FW080EX, DN80 | FW100EXL, DN100 | 2x FW100EXL, DN100 | 3x FW100EXL, DN100 | 3x FW150EX, DN150 |
|
50µm |
FW080EX, DN80 | FW100EX, DN100 | FW150EX, DN150 | 2x FW150, DN150 | 2x FW150EX, DN150 |
|
80µm |
FW080, DN80 | FW100EX, DN100 | FW150, DN150 | FW150EX, DN150 | FW200, DN200 |
|
100µm |
FW080, DN80 | FW100, DN100 | FW150, DN150 | FW150, DN150 | FW200, DN200 |
|
200µm |
FW080, DN80 | FW100, DN100 | FW150, DN150 | FW150, DN150 | FW200, DN200 |
|
400µm |
FW050, DN50 | FW100, DN100 | FW100EXL, DN100 | FW150, DN150 | FW200, DN200 |
|
River water quality (dirt load of approx. 200mg/l) |
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|
25 m³/h |
50 m³/h |
100 m³/h |
150 m³/h |
200 m³/h |
|
|
30µm |
FW100EX, DN100 | 2 x FW100EX, DN100 | 3 x FW100EXL, DN100 | 4 x FW100EXL, DN100 | 5 x FW150EX, DN150 |
|
50µm |
2 x FW080EX, DN80 | FW100EX, DN100 | 2 x FW100EX, DN100 | 2 x FW150EX, DN150 | 3 x FW150EX, DN150 |
|
80µm |
FW080EX, DN80 | FW100EX, DN100 | FW150EX, DN150 | FW150EX, DN150 | 2 x FW150EX, DN150 |
|
100µm |
FW080EX, DN80 | FW100, DN100 | FW150, DN150 | FW150EX, DN150 | FW250EX, DN250 |
|
200µm |
FW080, DN80 | FW100, DN100 | FW150, DN150 | FW150, DN150 | FW200, DN200 |
|
400µm |
FW080, DN80 | FW100, DN100 | FW150, DN150 | FW150, DN150 | FW200, DN200 |